Consider the following two statements:I. Not all copulations lead to f...
Statement I is correct: Not all instances of copulation result in fertilization and pregnancy due to various factors such as timing, fertility issues, and other conditions.
Statement II is correct: Fertilization can indeed occur if both the ovum and sperm are present in the fallopian tubes simultaneously. However, this alone does not guarantee fertilization or pregnancy, as other conditions also play a role.
Therefore, both statements are correct, but Statement II does not fully explain Statement I.
Consider the following two statements:I. Not all copulations lead to f...
Understanding the Statements
The two statements relate to reproduction in humans, specifically regarding copulation, fertilization, and pregnancy.
Statement I: Not all copulations lead to fertilization and pregnancy
- Copulation refers to the act of sexual intercourse.
- It is important to note that even if copulation occurs, it does not guarantee that fertilization will take place.
- Factors such as timing, the health of gametes, and environmental conditions can prevent fertilization, leading to no pregnancy.
Statement II: Fertilization can occur if the ovum and the sperm are simultaneously transported to the ampullary-isthmic junction
- The ampullary-isthmic junction is a critical site in the female reproductive tract where fertilization typically occurs.
- For fertilization to happen, the sperm must meet the ovum in a timely manner at this junction.
- If both gametes arrive simultaneously, the chances of successful fertilization increase significantly.
Connecting the Statements
- Both statements are indeed correct.
- Statement I highlights that copulation does not always result in fertilization, which is a fundamental aspect of reproductive biology.
- Statement II explains a scenario in which fertilization can occur, thereby providing insight into the conditions necessary for successful reproduction.
Conclusion
- The correct answer is option 'B' because both statements are accurate and Statement II offers an explanation for the conditions under which fertilization can occur, which relates back to Statement I's assertion about the uncertainty of fertilization following copulation.
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